Flip-top straw tumbler



FIG. 1 is a top, side and front perspective view of a flip-top straw tumbler showing my new design in the closed position;

FIG. 2 is a top plan view thereof, the bottom plan view being obscured during use.

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view, the right side elevation being a mirror image thereof; and,

FIG. 6 is a top, side and front perspective view of a flip-top straw tumbler in the open position.

The broken lines depict environmental subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a flip-top straw tumbler, as shown and described. 